Abstract: The specification discloses an improved paste electrolyte composition for use in a high-temperature molten carbonate fuel cell, using substantially pure alkali metal aluminate formed from reactive alumina as the only inert material in the electrolyte. Finely divided reactive alumina substantially completely free of silica is admixed with alkali metal carbonates and fired to remove carbon dioxide to form as final inert carrier material substantially pure inert alkali metal aluminate. The initial composition of the starting mixture is selected so that the final composition is between 40 and 70% by weight alkali metal carbonates. In contrast to magnesia supported fuel cells which show a 40% drop-off in power output, the aluminate paste electrolyte-utilizing fuel cells of the invention show essentially no deterioration.

Abstract: A process for the production of hydrogen and oxygen from water comprising the steps of forming ferric chloride from ferriferrous oxide by reaction with a chloride ion yielding substance, reducing the ferric chloride produced with a reducing agent to produce ferrous chloride, thermally reducing the ferric chloride to produce ferrous chloride, then oxidizing either the ferrous compound or metallic iron with water so as to produce hydrogen. The metallic iron may be formed by reducing the ferrous compound with hydrogen. Four specific reactant regenerative closed cycle systems are disclosed utilizing the process of this invention for the production of hydrogen with high energy efficiencies.

Abstract: A method for inhibiting stress-corrosion cracking of a steel pipeline transmitting gas under elevated pressure provided with an external protective coating and means for cathodic protection, and steep pipe and pipelines so protected are described. The method consists of introducing a composition containing at least one of the inhibitors, calcium monobasic phosphate, sodium monobasic phosphate, sodium tripolyphosphate and potassium silicate, into a buried pipeline environment. The inhibiting composition may be simply introduced to the environment adjacent the pipeline or it may be incorporated in a coating on the pipeline, either in the primer or in a top coating thereover or in an intermediate coating between a conventional primer and topcoating, or in a tape applied to the pipeline.